8. Two wires 30 cm of your long otherwise
identical are stretched by the weight 2 kg and
2.1 kg respectively, 6 beats are produced when
they vibrate in their fundamental mode. How
many beat per sec will heard when weights are
exchanged.
Answers
Answered by
3
No, we cannot hear the sound of stones. Sound is a mechanical wave and requires a medium to travel; there is no medium on the moon.
No, we cannot hear the sound of our own footsteps because the vibrations of sound waves from the footsteps must travel through our body to reach our ears. By that time however, the sound waves diminish in magnitude.
Similar questions